To clarify I am waiting to collect my mum from the hospital, it's nearly 10pm, there are 5 other empty disabled bays and I'm sat with the lights on and engine running until she appears. Have just had to move the car from another car park as it's closed, and the nearest multistorey car park is the far side of the hospital (giant city teaching hospital, a real trek) and I hope to be less than 10 minutes.
Would move the car in a heartbeat if it was needed by a blue badge holder. Haven't seen another car arrive since I started typing this!